Fitness & Performance Calculators
Use 4 free online health and fitness calculators for BMI, calories, nutrition, body composition, pregnancy, wellness, and exercise. Choose a category below to find the right health calculator.
Fitness & Performance
This topic includes 4 working calculators in health & fitness calculators. Each page links directly to the live tool.
- BMR & TDEE CalculatorCalculate your Basal Metabolic Rate (BMR) and Total Daily Energy Expenditure (TDEE) to understand your daily calorie needs. Accurate metabolic calculator using Mifflin-St Jeor, Harris-Benedict, and Katch-McArdle formulas. Perfect for weight loss, muscle gain, or maintenance goals.Open tool
- Heart Rate Zone CalculatorCalculate your target heart rate zones for optimal training. Find the right intensity for fat burning, cardio, and maximum performance.Open tool
- Target Heart Rate CalculatorTarget Heart Rate - Calculate your health metrics and get insights for better wellness.Open tool
- VO2 Max CalculatorCalculate your VO2 max, the gold standard measure of cardiovascular fitness and aerobic capacity. Estimate maximal oxygen uptake using multiple field tests including Cooper 12-minute run, Rockport 1-mile walk, and non-exercise methods. Essential for runners, athletes, and endurance training.Open tool
Frequently asked questions
What can I calculate with Fitness & Performance Calculators?
Free fitness & performance within our health & fitness calculators.
Are the Fitness & Performance Calculators free to use?
All 4 fitness & performance calculators on this site are free, work in your browser, and require no signup or download.
How do I find the right fitness & performance calculators?
Use the subcategory filters and search bar on this page to narrow the list, then open the calculator page that matches your task for the tool and a quick guide.